Shower head with automatically resettable spray gun

Abstract

A shower head with automatically resettable spray gun includes a shower head body including a water passage switching mechanism, a shower head, and a spray gun head which respectively communicates with the water passage switching mechanism. The water passage switching mechanism includes a water passing member and a water passage switching unit. The water passing member includes a water inlet, a water passage switching cavity communicating with the water inlet, a shower head water passage and a spray gun water passage which respectively communicates with the water passage switching cavity. The water passage switching unit arranged in the water passage switching cavity includes a button arranged at the water passing member by hinge joint, a switching link rod arranged at a lower portion of the button, and an elastic member connected between the switching link rod and the water passage switching cavity.

What is claimed is: 
     
         1 . A shower head with automatically resettable spray gun, comprising:
 a shower head body, wherein the shower head body includes a water passage switching mechanism, a shower head, and a spray gun head, the shower head and the spray gun head respectively communicates with the water passage switching mechanism; wherein   the water passage switching mechanism includes:   a water passing member, wherein the water passing member includes a water inlet, a water passage switching cavity communicating with the water inlet, a shower head water passage, and a spray gun water passage, the shower head water passage and the spray gun water passage respectively communicates with the water passage switching cavity; and   a water passage switching unit arranged in the water passage switching cavity, wherein the water passage switching unit includes a button arranged at the water passing member by hinge joint, a switching link rod arranged at a lower portion of the button, and an elastic member connected between the switching link rod and the water passage switching cavity; in an initial water inflow state, the water passage switching cavity communicates the shower head water passage and the water inlet and the switching link rod blocks off the spray gun water passage; by pressing the button, the switching link rod is driven to move and thus blocking off the shower head water passage, and the water passage is switched to a state where the water passage switching cavity communicates with the spray gun water passage, at this time, the elastic member is in a compressed state, and the state is retained under the action of water pressure; when water inflow is finished, since the water pressure is removed, the water passage is automatically switched and reset to the initial state under the action of the elastic member;   wherein the shower head body further comprises a water outlet mechanism which provides water spray of granular and mist shape, the water outlet mechanism communicates with the shower head water passage;   the water outlet mechanism comprises: a water outlet body, wherein an end surface of the water outlet body is provided with a plurality of water outlet holes for providing the water spray of granular and mist shape, a first rotary shaft is arranged at a center of the water outlet body, and an inner sidewall of the water outlet body is provided with inner gear teeth;   a water passing member sleeved on the first rotary shaft, wherein the water passing member is provided with a first water passing hole and a second water passing hole;   a flow rate adjustment plate, wherein the flow rate adjustment plate is sleeved on the first rotary shaft and is attached with the water passing member, by rotating the flow rate adjustment plate, a covered area of the first water passing hole and the second water passing hole can be adjusted, such that the flow rate of the water passing member can be adjusted, the flow rate adjustment plate is provided with a second rotary shaft;   a first gear sleeved on the second rotary shaft, wherein the first gear is engaged with the inner gear teeth; and   an impeller sleeved on the first rotary shaft, wherein the impeller  145  includes second gear arranged around an axis of the impeller, the second gear is engaged with the first gear.   
     
     
         2 . The shower head with automatically resettable spray gun according to  claim 1 , wherein the water passage switching unit further comprises:
 a fixation seat, wherein the switching link rod is partially arranged in the fixation seat and can move up and down in the fixation seat; and   a first sealing rubber ring arranged on the switching link rod for blocking off the spray gun water passage or the shower head water passage in a switching process.   
     
     
         3 . The shower head with automatically resettable spray gun according to  claim 2 , wherein a circumference of a bottom portion of the switching link rod is further provided with an engagement groove for receiving the first sealing rubber ring. 
     
     
         4 . The shower head with automatically resettable spray gun according to  claim 1 , wherein areas of the first water passing hole and the second water passing hole are different. 
     
     
         5 . The shower head with automatically resettable spray gun according to  claim 4 , wherein the areas of the first water passing hole and the second water passing hole are respectively defined as S 1  and S 2 , and 4*S 2 ≥S 1 ≥1.5*S 2 . 
     
     
         6 . The shower head with automatically resettable spray gun according to  claim 1 , wherein the water passing member further comprises a plurality of positioning columns which are sleeved in the water outlet holes for providing the water spray of granular and mist shape. 
     
     
         7 . The shower head with automatically resettable spray gun according to  claim 1 , wherein the shower head body further comprises a handle, the handle includes a casing and a filter core arranged in the casing. 
     
     
         8 . A shower head with automatically resettable spray gun, comprising:
 a shower head body, wherein the shower head body includes a water passage switching mechanism, a shower head, and a spray gun head, the shower head and the spray gun head respectively communicates with the water passage switching mechanism; wherein   the water passage switching mechanism includes:   a water passing member, wherein the water passing member includes a water inlet, a water passage switching cavity communicating with the water inlet, a shower head water passage, and a spray gun water passage, the shower head water passage and the spray gun water passage respectively communicates with the water passage switching cavity; and a water passage switching unit arranged in the water passage switching cavity, wherein the water passage switching unit includes a button arranged at the water passing member by hinge joint, a switching link rod arranged at a lower portion of the button, and an elastic member connected between the switching link rod and the water passage switching cavity; in an initial water inflow state, the water passage switching cavity communicates the shower head water passage and the water inlet and the switching link rod blocks off the spray gun water passage; by pressing the button, the switching link rod is driven to move and thus blocking off the shower head water passage, and the water passage is switched to a state where the water passage switching cavity communicates with the spray gun water passage, at this time, the elastic member is in a compressed state, and the state is retained under the action of water pressure; when water inflow is finished, since the water pressure is removed, the water passage is automatically switched and reset to the initial state under the action of the elastic member;   further comprising: a flow rate switching mechanism, wherein the flow rate switching mechanism comprises:   a switching ring;   a fixation seat sleeved in the switching ring;   a sealing rubber cup arranged in the fixation seat, wherein the sealing rubber cup is provided with a first water passing port;   a switching shaft arranged at the bottom of the fixation seat, wherein the switching shaft is provided with a second water passing port corresponding to the first water passing port, and a toggle shaft, wherein a first end of the toggle shaft is fixedly connected to the switching shaft, a second end of the toggle shaft contacts the switching ring.